Question

I have an HTML form that redirects me to aspx page with a login:

<form method="post" action="../login.aspx">

If the data is correct everything is ok, but when data fail, I need to display an error message, how I can do that?

In the aspx page I have a redirect when everything is ok, but when the login fails y try to put an alert and redirect to my html page, but this not works, the user go to the html page but the alert is not shown:

Response.Redirect("~/Users.aspx"); //here everything is ok
                }
            }
            // if the login is wrong
            else
            {
                Response.Write("<script>alert(the login is wrong);</script>");
                Response.Redirect(Request.UrlReferrer.ToString());
            }

Answer 1

If the condition is wrong then please insert following code in c# code

ClientScript.RegisterStartupScript(this.GetType(), “myalert”, “alert(‘Your Alert Mesage Here’);”, true);